<%@ page language="java" import="java.util.*" pageEncoding="utf-8"%>
<%@ taglib tagdir="/WEB-INF/tags" prefix="ok"%>
<html>
  <head>    
    <title>使用tag文件求三角形面积</title>
  </head>
  <body bgcolor="cyan">
  	<ok:triangle2 s1="<%=new Double(12)%>" s2="<%=new Double(13)%>" s3="<%=new Double(18)%>"></ok:triangle2>
  	<%out.print(ss);%>
  </body>
</html>





